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4018 Bratislava (1980 YM)
Classification: Main-belt Asteroid          SPK-ID: 2004018
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1632889631457289 1.2102e-08  
a 2.581409288877187 8.8395e-09 au
q 2.159893642641678 3.4031e-08 au
i 3.428734822687507 1.1001e-06 deg
node 252.2462788136876 1.4873e-05 deg
peri 158.1655128487199 1.7142e-05 deg
M 275.0292977612551 1.0048e-05 deg
tp 2459558.061241307843
(2021-Dec-09.56124131)
4.3162e-05 TDB
period 1514.899176767411
4.15
7.7812e-06
2.13e-08
d
yr
n .237639577287375 1.2206e-09 deg/d
Q 3.002924935112696 1.0283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1884  
   data-arc span      15492 days (42.41 yr)  
   first obs. used      1978-05-09  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 15:59:37  

Additional Information
 Earth MOID = 1.17015 au 
 Jupiter MOID = 2.3634 au 
 T_jup = 3.403 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456680.5 (2014-Jan-23.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650703856296566 1.2096e-08  
q 2.154003328474785 3.3947e-08 au
tp 2456534.625603877242
(2013-Aug-30.12560388)
3.7855e-05 TDB
node 252.3541423375331 1.4834e-05 deg
peri 158.7271280452723 1.7061e-05 deg
i 3.434686946097862 1.102e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1884  
   data-arc span      15492 days (42.41 yr)  
   first obs. used      1978-05-09  
   last obs. used      2020-10-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 15:59:37  

Additional Information
 Jupiter MOID = 2.3634 au 
 T_jup = 3.403 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.46312987011479E-16 -4.018394191405447E-16 -9.856016688478468E-14 -2.699821800666712E-14 5.904532530710279E-15 9.182213265002396E-16
q -4.018394191405447E-16 1.152420158817104E-15 2.865034927203874E-13 6.677696872950807E-14 -1.209134289733602E-15 -2.319581600655109E-15
tp -9.856016688478468E-14 2.865034927203874E-13 1.433025074190815E-9 -4.533971535126022E-11 3.211449651958222E-10 -9.79511037508025E-13
node -2.699821800666712E-14 6.677696872950807E-14 -4.533971535126022E-11 2.200450284472396E-10 -2.284822724711962E-10 -4.427158320754539E-12
peri 5.904532530710279E-15 -1.209134289733602E-15 3.211449651958222E-10 -2.284822724711962E-10 2.910629402339013E-10 4.125061466204995E-12
i 9.182213265002396E-16 -2.319581600655109E-15 -9.79511037508025E-13 -4.427158320754539E-12 4.125061466204995E-12 1.21447325479692E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.57   n/a E2021B10  
diameter diameter 11.577 km 0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4018 Bratislava (1980 YM)          Discovered 1980-Dec-30 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1980 YM = 1978 JP3 = 1979 OH16 = 1981 AJ1 = 1981 BE 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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